itsjustagreat1 Posted August 23, 2014 Report Share Posted August 23, 2014 Just getting my new port cyls put on and wondering what main to start with. I am runnin cpi's , 34mm mikuni flats, plate at 0 and dyna on stage 2 at 2000ft , 19cc domes on 110/91 blend I ran 320 mains on old port 196deg exhaust 127deg trans and 123deg boost. I now have 198deg exhaust 130deg trans 126 deg boost and 2mm widened main transfers. Roughly where should i start with my main jets? Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted August 24, 2014 Report Share Posted August 24, 2014 Can port, but not jet? Ok..... Well. Try upping the main to a 370 and work down. Maybe a clip richer on the needles and 30 pilot. With the size of those carbs the pilot may like to be a bit larger since there won be much off idle vacuum on a set up like that. Quote Link to comment Share on other sites More sharing options...
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